Improvement in measuring-faucets



12H. -HAMBLETML MEASURING FAUCET.

No.187.623. Patented Fe,b.z`o,1a77.

-FRnNeIs n. HAMBLETON, or BALTIMORE, MARYLAND.

IMPROVEMENT IN NIEASURINGnFAUCETS.

Speciiication forming part of Letters Patent No. 187,623, dated February 2.0, 1877; application filed Y January 23, 1877.

To all lwhom 'it may concern Be it known that I, FRANCIS HENRY HAM- BLETON, of Baltimore city, in the State of Maryland, have invented certain new and useful Improvements in` Flow-Rate Indicator for Liquids; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the aecompanying drawing, and to the letters ot' reference marked thereon, which form a part of this speciication. I The object of my invention is to aord a simple and convenient means ot' ascertaining, by inspection, very nearly the rate 0f discharge of fluids without interrupting the flow as they are being drawn for manufacturing purposes or otherwise, and of producing any desired rate of flow within the capacity of the apparatus instantly. To accomplish this I employ a chamber which has three openings-one" connecting with the source of supply, one with a discharge-nozzle, and one with a stand-pipe. The flow of the uid into the chamber is controlled by an ordinary cock or valve in the supply-pipe. The ow out of the chamber or discharge -is controlled by the pressure maintained in the chamber. The pressure in the chamber is indicated by the height that the fluid stands in the standpipe when discharging a't the Vnozzle, and theuiesiredpressure can be maintained or regulated by adiusting the supply-cock until the required height is had. lhc height is ascertained by the scale, and the scale is ascertained by actual measurement of the quantity flowing under different heads in the stand-pipe. or it may be nearly approximated by calculation. v Y

Figure l represents a vertical section of the apparatus; Fig. 2, a top view; Fig. 3, a side elevation 5 Fig. 4, a horizontal section through the supply-port; and Fig. 5, a moditication,

showing the apparatus as constructed to avoid eddies.

One arrangement of the apparatusis shown by the accompanying drawing in the form of a'plug-cock, the chamber being at a, the controlling-valve at b, the discharging nozzle at c, the standpipe at d, and scale atie. By preference I employ a glass standpipe, for convenience; but any pipe with means of indicating the height of the liquid will answer. A convenient form is' shown with the stand-pipe mounted on the axis of the plug of a plug-cock, and therefore moves with it.

`Where great accuracy is required, a comparatively larger chamber should be employed, as shown in Fig. 5, to avoid the effects of eddies arising from the oblique approach ofthe supply to the chamber, as would be thevcase in the plug-cock when the port is partly closed.

It would be possible to have several different nozzles for different liuids, which would give the samerate of discharge t'or the' respective liquids by one standard scale, or several different scales, which would give the same rate ot' discharge for different fluids.

Where it is not desirable to control the flow, but simply to indicate what it is, the cock or valve on the supply-pipe may be omitted.

The essential arrangement of the matter is, that a standpipe should indicate the head ofliquid in a chamber communicating with an unalterable nozzle, and. that the supply ofliquid to the chamber carrying the nozzle and stand-pipe should be capable of increase Vor diminution under variable pressures, where such is desirable, by means of a valve or cock, soas not to disturb the size or operation of the discharge-nozzle.

The standpipe may be opened or closed at the top, as may be deemed best; but under heavy pressure from the supply it may be found necessaryto have it closed.

I claiml. A dow-rate indicator for liquids, consisting, essentially, of a chamber Ahaving three openings-one connecting with thesource ot' supply, one with a discharge-nozzle, and one with a stand-pipe--for showing the head, and thereby indicating the rate of flow.

2. A dow-rate indicator for liquids, consisting, essentially, of a chamber having have axed my signature in the presence of three openings-one connecting With the two witnesses. source of supply, one with a discharge-nozz1e,and one with a stand-pipe-in combina- FRANCIS H' HAMBLETON' tion with a cook or valve for controlling the l Witnesses: desired rate of flow. A. E. H. JOHNSON,

In testimony that I claim the foregoing I J W. HAMILTON JOHNSON. 

